[BlueOnyx:02871] Re: raid 10

[James]

I tried something to see what would happen not too long ago - I had an old
12-disk SCSI array that does NOT do hardware RAID that I hooked up to a
machine and let BO loose on it.  I was hoping, even though I expected it
would be slow, to get some sort of RAID0+1 config giving me a md device for
half of my total disk space.  Well, after it got all installed and booted
up, I found that the configuration it built was a single device the size of
a single drive, having 12 (yes, 12) mirrors of the same data.  Guess that
wasn't really an intended hardware setup... :)

James

-----Original Message-----
From: blueonyx-bounces at blueonyx.it [mailto:blueonyx-bounces at blueonyx.it] On
Behalf Of Michael Stauber
Sent: Thursday, November 12, 2009 3:15 PM
To: BlueOnyx General Mailing List
Subject: [BlueOnyx:02866] Re: raid 10

Hi Jeff,

> I guess I don't... Don't see a RAID 10 personality.

Yeah, like said: BlueOnyx can do RAID0+1 if it finds four disks. Which is no

true RAID10, but something pretty close.

The reasons for not supporting true RAID10 (or RAID5 either) are limitations

of the Anaconda CD installer. The first stage kernel didn't support either 
RAID5 or RAID10 so far, hence you couldn't use Anaconda to set up RAID10 or 
RAID5. I think that was recently changed in Anaconda, but I haven't yet 
checked if the new install CD kernel now handles it, too.

-- 
With best regards

Michael Stauber

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